Finding the Fourth Proportional to 621,369.97, 857,482.36 and 349,437.78
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Solution
The fourth proportional to 621,369.97, 857,482.36 and 349,437.78 is: 482,219.53
Step by Step Solution
- Step 1: Write the proportion equation
621,369.97 : 857,482.36 = 349,437.78 : x - Step 2: Convert to fraction form
621,369.97/857,482.36 = 349,437.78/x - Step 3: Cross multiply
621,369.97x = 857,482.36 × 349,437.78 - Step 4: Simplify right side
621,369.97x = 299,636,731,393.97 - Step 5: Solve for x
x = 299,636,731,393.97/621,369.97 - Step 6: Final answer
x = 482,219.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.